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About GreigiteHide

Joseph W. Greig
metallic pinkish, tarnishing to a metallic blue, sooty black when amorphous
Metallic, Earthy
4 - 4½
Specific Gravity:
Crystal System:
Named in honor of Joseph Wilson Greig (1895, Ontario, Canada - 22 October 1977, Lewistown, Pennsylvania, USA), a mineralogist and physical chemist at at the Geophysical Laboratory of the Carnegie Institution, Washington, D.C., USA and later at Pennsylvania State University, State College, Pennsylvania, USA. He was a pioneer in high-temperature phase equilibrium studies of oxide and sulfide systems. Perhaps his greatest contribution was a comprehensive study of liquid immiscibility in silicate systems, with important applications in high tempertaure furnaces.
Linnaeite Group and Thiospinel Group.
Strongly magnetic.

Iron thiospinel occurs always in small crystals to 0.03 mm and as an X-ray amorphous colloidal precipitate from an iron sulfide gel known as the melnikovite of Doss.
Greigite is metastable with respect to pyrite and marcasite.

Classification of GreigiteHide

First Published:

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4

10 : AmBnXp, with (m+n):p = 3:4

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
9 : Sulphides etc. of Fe

Physical Properties of GreigiteHide

Metallic, Earthy
metallic pinkish, tarnishing to a metallic blue, sooty black when amorphous
4 - 4½ on Mohs scale
VHN50=401 - 423 kg/mm2 - Vickers
4.049 g/cm3 (Measured)    4.079 g/cm3 (Calculated)

Optical Data of GreigiteHide

Colour in reflected light:
Pale creamy white

Chemical Properties of GreigiteHide

Common Impurities:

Crystallography of GreigiteHide

Crystal System:
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Cell Parameters:
a = 9.876 Å
Unit Cell V:
963.26 ų (Calculated from Unit Cell)
Balls of intergrown octahedra, cubes, granular

Geological EnvironmentHide

Geological Setting:
Lacustrine beds, hydrothermal veins

Type Occurrence of GreigiteHide

Place of Conservation of Type Material:
Skinner, B.J., Erd, R.C., Grimaldi, F.S. (1964) Greigite, the thio-spinel of iron, a new mineral. American Mineralogist: 49: 543-555.

Synonyms of GreigiteHide

Other Language Names for GreigiteHide

Simplified Chinese:胶黄铁矿

Relationship of Greigite to other SpeciesHide

Other Members of this group:
CadmoinditeCdIn2S4Iso. m3m (4/m 3 2/m) : Fd3m
Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
DaubréeliteFe2+Cr3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
InditeFeIn2S4Iso. m3m (4/m 3 2/m) : Fd3m
JoegoldsteiniteMnCr2S4Iso. m3m (4/m 3 2/m) : Fd3m
KalininiteZnCr2S4Iso. m3m (4/m 3 2/m) : Fd3m
LinnaeiteCo2+Co3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
PolydymiteNi2+Ni3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
SiegeniteCoNi2S4Iso. m3m (4/m 3 2/m) : Fd3m
Tarkianite(Cu,Fe)(Re,Mo)4S8Iso. 4 3m
ViolariteFe2+Ni3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
Forms a series with:

Common AssociatesHide

Chlorite GroupA group of mostly monoclinic (also triclinic or orthorhombic) micaceous phyllosilicate minerals with a structure ...
Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Associated Minerals Based on Photo Data:
3 photos of Greigite associated with PyriteFeS2

Related Minerals - Nickel-Strunz GroupingHide

2.DA.05BornhardtiteCo2+Co3+2Se4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05CarrolliteCu(Co,Ni)2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05Cuproiridsite(Cu,Fe)Ir2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05DaubréeliteFe2+Cr3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05FletcheriteCu(Ni,Co)2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05Florensovite(Cu,Zn)Cr1.5Sb0.5S4Iso. m3m (4/m 3 2/m)
2.DA.05InditeFeIn2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05KalininiteZnCr2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05LinnaeiteCo2+Co3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05PolydymiteNi2+Ni3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05SiegeniteCoNi2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05TyrrelliteCu(Co3+,Ni3+)2Se4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05ViolariteFe2+Ni3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05CadmoinditeCdIn2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.05CuprokalininiteCuCr2S4Iso. m3m (4/m 3 2/m) : Fd3m
2.DA.10RhodostanniteCu1+(Fe2+0.5Sn4+1.5)S4Tet. 4/m : I41/a
2.DA.15BrezinaiteCr3S4Mon. 2/m
2.DA.15Heideite(Fe,Cr)1.15(Ti,Fe)2S4Mon. 2/m
2.DA.20KonderiteCu3Pb(Rh,Pt,Ir)8S16Hex. 6/m : P6/m
2.DA.25Kingstonite(Rh,Ir,Pt)3S4Mon. 2/m : B2/m

Related Minerals - Dana Grouping (8th Ed.)Hide m3m (4/m 3 2/m) : Fd3m,Ni)2S4Iso. m3m (4/m 3 2/m) : Fd3m,Co)2S4Iso. m3m (4/m 3 2/m) : Fd3m,Ni3+)2Se4Iso. m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3müstedtiteNi3Se4Iso.éeliteFe2+Cr3+2S4Iso. m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3m,Zn)Cr1.5Sb0.5S4Iso. m3m (4/m 3 2/m),Fe)Ir2S4Iso. m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3m m3m (4/m 3 2/m) : Fd3m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.9.3PyriteFeS2Iso. m3 (2/m 3) : Pa3
3.9.4MarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.9.6Mackinawite(Fe,Ni)9S8Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.9.7Smythite(Fe,Ni)3+xS4 (x=0-0.3)Trig. 3m (3 2/m) : R3m
3.9.8Achávalite(Fe,Cu)SeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.9.9FerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.9.10FrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.9.11LöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.9.12ArsenopyriteFeAsSMon. 2/m : P21/b
3.9.13GudmunditeFeSbSMon. 2/m : P21/b

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for GreigiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Skinner, B.J., Erd, R.C., Grimaldi, F.S. (1964) Greigite, the thio-spinel of iron, a new mineral. American Mineralogist: 49: 543-555.
Fleischer, M. (1969) New mineral names. American Mineralogist: 54: 326-330.
Radusinović, D.R. (1966) Greigite from the Lojane chromium deposit, Macedonia. American Mineralogist: 51, 209-215.
International Mineralogical Association (1982) International Mineralogical Association: Commission on new minerals and mineral names. Mineralogical Magazine: 46: 513-514.
Schoonen, M.A.A., Barnes, H.L. (1991) Reaction forming pyrite and marcasite from solution II. Via FeS precursors below 100° C. Geochimica et Cosmochimica Acta: 55: 1505-1514.
Krupp, R.E. (1994) Phase relations and phase transformations between the low-temperature iron sulfides mackinawite, greigite, and smythite. European Journal of Mineralogy: 6: 265-278.
Frankel, R.B., Bazylinski, D.A. (2003) Biologically induced mineralization by bacteria. Reviews in Mineralogy and Geochemistry: 54: 95-114.
Kasama, T., Pósfai, M., Chong, R., Finlayson, A.P., Buseck, P.R., Frankel, R.B., Dunin-Borkowwski, R.E. (2006) Magnetic properties, microstructure, composition, and morphology of greigite nanocrystals in magnetotactic bacteria from electron holography and tomography. American Mineralogist: 91: 1216-1229.
Gibbs, G.V., Cox, D.F., Rosso, K.M., Ross, N.L., Downs, R.T., Spackman, M.A. (2007) Theoretical electron density distribution for Fe- and Cu-sulfide Earth materials: A connection between bond length, bond critical point properties, local energy densities, and bonded interactions. Journal of Physical Chemistry B: 111: 1923-1931.
Pattrick, R.A.D., Coker, V.S., Akhtar, M., Malik, M.A., Lewis, E., Haigh, S., O'Brien. P., Shafer, P.C., Laan, G.V.D. (2017) Magnetic spectroscopy of nanoparticulate greigite, Fe3S4. Mineralogical Magazine: 81: 857-872.
Ssu Han Li, Yen-Hua Chen, Jey-Jau Lee, Hwo-Shuenn Sheu (2018) Phase transition of iron sulphide minerals under hydrothermal conditions and magnetic investigations. Physics and Chemistry of Minerals: 45: 27-38.
Lin, M.-Y., Chen, Y.-H., Lee, J.-J., Sheu, H.-S. (2018) Reaction pathways of iron-sulfide mineral formation: an in situ X-ray diffraction study. European Journal of Mineralogy: 30: 77-84.

Internet Links for GreigiteHide

Localities for GreigiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Shkodër County
    • Vau i Dejës
      • Drin valley
V. Ferrini, L. Martarelli, C. De Vito, A. Cina and T. Deda (2003) The Koman dawsonite and realgar-orpiment deposit, northern Albania; inferences on processes of formation. The Canadian Mineralogist(April 2003), 41, Part 2:413-427
  • Eastern Antarctica
    • Queen Maud Land
      • Queen Fabiola Mts (Yamato Mts)
El Gorsey, A., Yabuki, H., Ehlers, K., Woolum, D. & Pernicka, E. (1988). Qingzhen and Yamato-691: A tentative alphabet for the EH chondrites. Proceedings NIPR Symposium Antarctic Meteorites 1, 65-101.
  • Western Antarctica
    • Antarctic Peninsula
      • South Shetland Islands
Agusto et al (2004), Revista de la Asociación Geológica Argentina: 59(1), March 2004.
  • Catamarca Province
    • Andalgalá Department
      • Capillitas mining district
MARQUEZ-ZAVALIA, M.F.. The As-rich end-member of the jordanite-geocronite series of the Capillitas Mine, Catamarca. Rev. Asoc. Geol. Argent. [online]. 2006, vol.61, n.2, pp. 231-235.
  • Jujuy Province
    • Humahuaca Department
      • Aguilar mining district
USGS Open-File Report 2009-1252 Sediment-hosted zinc-lead deposits of the world - Database and grade and tonnage models
    • Rinconada Department
      • Rinconada
Coira, B. L., & de Brodtkorb, M. K. (1995) Polymetallic mineralization associated with Cenozoic volcanism in Northern Puna, Argentina. In Pacrim (Vol. 95, pp. 135-140).
  • La Rioja Province
de Brodtkorb, M. K.; Gay, H. D.; Sureda, R. J. (1993): Polymetallic selenide-sulfide minerals of the Los Llantenes mining district, La Rioja, Argentina. Maurice, Yvon T. (Ed.), Proc. 8th Quadrenn. IAGOD Symp., 119-125.
Atlantic Ocean
  • Mid-Atlantic Ridge complex
    • Ashadze hydrothermal area
Firstova, A., Stepanova, T., Cherkashov, G., Goncharov, A., & Babaeva, S. (2016). Composition and formation of gabbro-peridotite hosted seafloor massive sulfide deposits from the Ashadze-1 hydrothermal field, Mid-Atlantic Ridge. Minerals, 6(1), 19.
  • New South Wales
    • Sandon Co.
      • Hillgrove
Gilligan, L.B., Brownlow, J.W., Cameron, R.G., Henley, H.F. (1992) Metallogenic Study and Mineral Deposit Data Sheets: Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map SH/56-10, SH/56-11. Geological Survey of New South Wales, Sydney, 509 pages.
  • Tasmania
    • West Coast municipality
      • Zeehan district
        • North Dundas
Kitto, P.A., 1994, Structural and Geochemical controls on Mineralisation at Renison, Tasmania. Unpub. PhD thesis, Uni. Tas.
  • Carinthia
    • Wolfsberg District
      • Bad Sankt Leonhard im Lavanttal
        • Kliening
          • Mischlinggraben
C.Auer (2013)
  • Flanders
    • East Flanders
      • Beveren
        • Kieldrecht
Jedwab, J. (1967) Minéralisation en greigite des débris végétaux d'une vase récente (Grote Geul). Bulletin de la Société belge de Géologie, 76, 26.; Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Belgium, 304 pages (in French).
  • Wallonia
    • Liège
      • Engis
H. Kucha et al., European Journal of Mineralogy, 1996, Vol. 8, N°1, pp. 93-102.
  • Vratsa Province
    • Balkan Mts (Stara Planina)
ATANASSOVA, S. THE PRESERVED MINERAL DIVERSITY OF SEDMOCHISLENITSI DEPOSIT, VRATSA ORE REGION.; Svetla Atanassova, The Preserved Mineral Diversity of Sedmochislenitsi Deposit, Vratsa Ore Region. pp 207-216
  • Manitoba
    • Flin Flon District
Economic Geology (1996) 91:1394-1413
  • Nova Scotia
    • Lunenburg Co.
      • Riverport
Dr. Robert C. Smith, II Ph.D. P.G.
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
GRICE, J.D. (1989) Mont Saint-Hilaire, Quebec: Canada's Most Diverse Mineral Locality. In: Famous mineral localities of Canada. Published by Fitzhenry & Whiteside Limited & the National Museum of Natural Sciences, 190 pages: 100-108; 166-175.; HORVÁTH, L., GAULT, R.A. (1990) The mineralogy of Mont Saint-Hilaire. Mineralogical Record, 21, 281-359.
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga mining district
          • Alacrán
Am Min 73:189
  • Anhui
    • Tongling
      • Shizishan ore field
Yunsheng Ren, Liandeng Liu, Jiwu Zhang, and Guohua Chen (2005): Gold 26(5), 9-12
Hongyang Li, Jingzhi Feng, Jinfang Wang, Zengqian Hou, Zhusen Yang, Congying Wang, and Wentao Chen (2010): Geology and Exploration 46(1), 70-75
      • Tongguanshan ore field
Junwu Lu and Yuanfa Xia (2001): Geology and Prospecting 37(3), 29-31
  • Guizhou
    • Guiyang
      • Qingzhen County
El Gorsey, A., Yabuki, H., Ehlers, K., Woolum, D. & Pernicka, E. (1988). Qingzhen and Yamato-691: A tentative alphabet for the EH chondrites. Proceedings NIPR Symposium Antarctic Meteorites 1, 65-101.
  • Hubei
    • Yichang
      • Yiling District
Dong, J., Zhang, S., Jiang, G., Li, H., & Gao, R. (2013). Greigite from carbonate concretions of the Ediacaran Doushantuo Formation in South China and its environmental implications. Precambrian Research, 225, 77-85.
  • Jiangxi
    • Jiujiang
      • Ruichang Co.
Zhongling Wang (1987): Geology and Prospecting 23(7), 14-19
  • Qinghai
    • Hainan
Fu, C., Bloemendal, J., Qiang, X., Hill, M.J., An, Z. (2016): Identification of Greigite in the Pliocene Sediments of Qinghai Lake and Its Geological Significance. Acta Geologica Sinica, 90, 2261–2262.
Costa Rica
  • Alajuela Province
Rodríguez, A., & van Bergen, M. J. (2017). Superficial alteration mineralogy in active volcanic systems: An example of Poás volcano, Costa Rica. Journal of Volcanology and Geothermal Research, 346, 54-80.
Czech Republic
  • Karlovy Vary Region
    • Sokolov District
Beran, P., Rojík, P.: Mineralogie a geologie lomu Lomnice v sokolovské hnědouhelné pánvi. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1997, roč. 4-5, s. 77-83.
  • Lapland
    • Kittilä
Paakkola, Juhani 1971. The volcanic complex and associated manganiferous iron formation of the Porkonen-Pahtavaara area in Finnish Lapland. Bulletin de la Commission Géologique de Finlande 247.
  • Brittany
    • Morbihan
      • Guern
R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
  • Corsica
    • Haute-Corse
      • Corte
        • Moïta
          • Matra
Picot, P. and Johan, Z. (1977). Atlas des Minéraux Métalliques, BRGM, Elsevier
  • Nouvelle-Aquitaine
    • Corrèze
      • Davignac
M.Deliens, C.Lheur, W.Peraud & D.Virlogeux (2004)- Les minéraux d'uranium du Boucheron, près de Davignac (Corrèze)- Le Cahier des Micromonteurs, n°84, pp 3-25.
    • Deux-Sèvres
      • La Chapelle Largeau
Le Cahier des micromonteurs, 2002, N°75, pp 8-25
  • Rhineland-Palatinate
    • Donnersbergkreis
      • Alsenz-Obermoschel
        • Obermoschel
Krupp, R.E. (1989) Paragenesis and conditions of formation of the Moschellandsberg mercury deposit, SW Germany. Mineralium Deposita, 24:2, 69-76.
  • Borsod-Abaúj-Zemplén County
    • Kazincbarcika District
No reference listed
  • Heves County
    • Recsk
No reference listed
Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
  • Apulia
    • Taranto Province
Garavelli, C.L., Nuovo, G. (1971): La greigite delle argille di Montemesola. Per. Mineral., 40, 3, 305-327; Boscardin, M.(1975): Informazioni di mineralogia italiana. 49) Greigite di Montemesola (Taranto). Notizie Gr. Mineral. Lombardo, 1 (marzo 1975), 4.
  • Piedmont
    • Metropolitan City of Turin
      • Balangero
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
  • Tuscany
    • Grosseto Province
      • Scansano
        • Pereta
Brizzi, G. & Meli, R. (1995): La miniera antimonifera di Pereta con un cenno a quella solfo-cinabrifera di Zolfiere in comune di Scansano (GR). Rivista Mineralogica Italiana, 19:, 217-240.
  • Veneto
Bertolin, A., Frizzo, P., and Rampazzo, G. (1995) Sulphide speciation in surface sediments of the Lagoon of Venice: A geochemical and mineralogical study. Marine Geology, 123, 1-2, 73-86.
  • Akita Prefecture
    • Odate
Handbook of Mineralogy
  • Iwate Prefecture
    • Oshu City
      • Esashi ward
Handbook of Mineralogy
North Macedonia
  • Lipkovo Municipality
Radusinović, D. R. (1966): Greigite from the Lojane chromium deposit, Macedonia. American Mineralogist 51, 209-215.
  • Podlaskie Voivodeship
    • Suwałki Co.
      • Suwałki Massif
Kucha H., Kwiecińska B., Piestrzyński A., Wieczorek A. 1979: On the genesis of graphite from magnetite rocks of Krzemianka (NE Poland). Mineralogia Polonica, vol. 10, no 2, 81-88
  • Bashkortostan
    • Uchalinsky District
Belogub, E.V., Novoselov, K.A., Yakovleva, V.A., and Spiro, B. (2008): Ore Geology Reviews 33, 239-254
  • Chelyabinsk Oblast
    • Kaslinsky District
      • Kasli
Safina, N. P., Maslennikov, V. V., Maslennikova, S. P., Kotlyarov, V. A., Danyushevsky, L. V., Large, R. R., & Blinov, I. A. (2015). Banded sulfide-magnetite ores of Mauk copper massive sulfide deposit, Central Urals: Composition and genesis. Geology of Ore Deposits, 57(3), 197-212.
  • Crimea
Geologiya SSSR (The geology of USSR) (1969) - Nedra (Moscou), 1969, vol. VIII, 575 p.
  • Krasnodar Krai
    • Taman Peninsula
      • Anapa
Chang, L., Vasiliev, I., van Baak, C., Krijgsman, W., Dekkers, M. J., Roberts, A. P., ... & Winklhofer, M. (2014). Identification and environmental interpretation of diagenetic and biogenic greigite in sediments: A lesson from the Messinian Black Sea. Geochemistry, Geophysics, Geosystems, 15(9), 3612-3627.
  • Primorsky Krai
    • Arminsky ore district
Gonevchuk, V. G., Korostelev, P. G., & Semenyak, B. I. (2005). Genesis of the Tigrinoe tin deposit (Russia). Geology Of Ore Deposits C/C Of Geologiia Rudnykh Mestorozhdenii, 47(3), 223.
  • Sverdlovsk Oblast
    • Karpinsk
Sharygin, V. V., & Ivanov, O. K. (2014) Cr-rich “tiooxyspinel” mineral from Kosva dunite massif, Middle Urals: possible link between spinel-and tiospinel-group minerals. 30th International Conference on “Ore Potential of Alkaline, Kimberlite and Carbonatite Magmatism”29 September – 02 October 2014 Antalya TURKEY
    • Serovsky District
      • Turinsk-Auerbakovsk ore field
        • Turya river
          • Tur'insk
American Mineralogist, 82, 620-624
  • Zabaykalsky Krai
    • Buriatia Republic (Buryatia)
      • Vitim Plateau
Pavel M. Kartashov analytical data (2011)
  • Košice Region
    • Rožňava Co.
Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
  • Prešov Region
    • Prešov District
      • Červenica
Duda,R. et. all.,1981: MIneralogia severnej časti Slanských vrchov. Min.Slovaca,Monografia 2, Bratislava, 98p
Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
    • Vranov nad Topľou District
Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
South Africa
  • Mpumalanga
    • Ehlanzeni District
Minerals of South Africa
  • North West
    • Bojanala Platinum District
      • Rustenburg (Rustenburg District)
Junge, M., Oberthür, T., & Melcher, F. (2014). Cryptic variation of chromite chemistry, platinum group element and platinum group mineral distribution in the UG-2 chromitite: an example from the Karee Mine, western Bushveld Complex, South Africa. Economic Geology, 109(3), 795-810.
  • Valais
    • Goms
      • Binn
        • Fäld
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 199.
  • England
    • Cornwall
      • St Endellion
Handbook of Mineralogy; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
  • California
    • Alpine Co.
      • Monitor - Mogul Mining District
        • Leviathan Peak
[MinRec 20:129-142]
    • Humboldt Co.
      • Coastal Range
Handbook of Mineralogy
    • Kern Co.
Cal Div of Mines & Geology "Mineral Information Service" V. 22 N. 9 Sept 1969
Wise, W. S., & Kleck, W. D. (1988). Sodic clay-zeolite assemblage in basalt at Boron, California. Clays and Clay Minerals, 36(2), 131-136.
Tschernich, R. (1992): Zeolites of the World, 64, 311; Clays and Clay Minerals, Vol. 36, No. 2, 131-136, 1988.
          • West Baker
Am Min 49:543-555
    • San Bernardino Co.
      • East Kramer Mining District
        • East Kramer Borate area (East Kramer Colemanite area)
          • Kramer Junction (Beecher's Corners; Beechers Corners; Four Corners)
American Mineralogist (1974): 49: 543-555.
  • Michigan
    • Alger Co.
Am Min 57:1303-1304
  • Missouri
    • Madison Co.
Sherwood, M. D., & Williams, G. A. (1998). Missouri mineral locality index. Rocks & Minerals, 73(2), 98-117.
  • Nevada
    • Churchill Co.
      • Table Mountain Mining District
        • Cottonwood Canyon
          • Bolivia
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Mexico
    • Eddy Co.
      • Carlsbad Caverns National Park
Northrop, Minerals of New Mexico, 3rd. Rev. Ed., 1996
Mineral and/or Locality  
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